People who are slow and full of hope are not loyal or long term investors but they are traders.
These two characteristics can be ignored in each of you.
Just buy BTC and save it until you have children and grandchildren because Bitcoin investment is very good for the long term.
I prefer the old style of investors who accumulate bitcoins gradually but they don't sell them at every recorded ATH. why don't they sell because they know bitcoin is very limited. Whatever happens, buy bitcoin even if it's $10, do it gradually.
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1) you said do we know that bitcoin is risky? Answer, yes bitcoin is risky but also profitable do to its volatility.
2) you said we shouldn't put our eggs in one basket? Yes we shouldn't do so, but but for me investing in bitcoin should be a major priority of investment that we should consider before talking about diversification.
3) you said we should invest in lung term but not to invest for our future children? I think our investment in bitcoin is kept as a store of value for retirement and also an asset kept for our future generation just like other physical asset are kept for the future. so if our hairs decides not to continue our legacy to continue with bitcoin investment, they can use the accumulated bitcoin for whatever they chose to invest. we have discussed that we should not force our children to invest in bitcoin.
4) you said no body know if bitcoin will fade away one day so we make it a side hustle? it's depends on your choice or where you hear your speculation from, because as far as I know bitcoin will last more than 100 years. we have total of 21million bitcoin in existence 1.5million is left to mine. according to research the last block to be mine in bitcoin will take place in the year 2140 that is 116years from now. so I can tell you that bitcoin can last more than your speculation. for the side hustle, it depends on you but I will tell you that bitcoin is a major asset to recon on. if Michael J Saylor and somany business tycon can use bitcoin as a major asset investment why will I use it as a side hustle. and moreover when saying bitcoin should be used as a side hustle you make it look thus like a short term profit mechanism while it's a long term asset.